CN112243220A

CN112243220A - Method for establishing communication connection and wearable device

Info

Publication number: CN112243220A
Application number: CN201910650281.8A
Authority: CN
Inventors: 周嘉鹏; 陈腾豪
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2019-07-18
Filing date: 2019-07-18
Publication date: 2021-01-19
Also published as: WO2021008614A1

Abstract

The application provides a method for establishing communication connection and wearable equipment, which are applied to equipment such as wireless earphones, mobile phones, smart cars, vehicle-mounted wading pens, tablet computers, notebook computers and portable computers, and can simply and quickly complete the establishment process of the communication connection between the equipment. The method comprises the following steps: the wearable equipment and the first terminal establish a first ACL link; the wearable device detects a preset knocking operation through a vibration sensor; responding to the knocking operation, and sending measurement signals to the N terminals by the wearable equipment; the wearable device receives M response signals generated by the M terminals in response to the measurement signals, and the response signals are associated with the RSSI of the terminals; the wearable device determines a second terminal, wherein the second terminal is the terminal with the largest RSSI (received signal strength indicator) in the M terminals and the first terminal; the wearable device disconnects the first ACL link with the first terminal and establishes the second ACL link with the second terminal.

Description

Method for establishing communication connection and wearable device

Technical Field

The present application relates to the field of terminal technologies, and in particular, to a method for establishing a communication connection and a wearable device.

Background

At present, one user often has a plurality of intelligent terminals. For example, a user may own multiple terminals such as a mobile phone, a tablet computer, a smart watch, and a bluetooth headset. The Bluetooth headset can be used as an output device to establish communication connection with other terminals of a user, and then the user can play audio contents in the terminal (namely, sound source device) connected with the user by using the Bluetooth headset.

Generally, the bluetooth headset may store the address of the last connected terminal (e.g., the bluetooth address of the terminal). After the user turns on the bluetooth headset, the bluetooth headset may try to search for the bluetooth signal of the terminal according to the saved address of the terminal. If the bluetooth signal of the terminal is searched, the bluetooth headset may automatically establish a bluetooth connection with the terminal that was connected most recently.

However, if the bluetooth signal of the terminal that is connected last time is not searched, the user needs to open a bluetooth device list in the terminal waiting for connection and select a bluetooth headset as the connection device in the bluetooth device list, thereby triggering the terminal to establish bluetooth connection with the bluetooth headset. Therefore, the user needs to perform multiple operations on the terminal to establish the Bluetooth connection between the Bluetooth headset and the terminal required by the user, the whole connection process consumes long time, the operation is complex, and the user experience is not high.

Disclosure of Invention

The application provides a method for establishing communication connection and wearable equipment, which can simply and quickly complete the establishment process of communication connection between equipment, simplify the operation flow and improve the use experience of a user.

In order to achieve the purpose, the technical scheme is as follows:

in a first aspect, the present application provides a method for establishing a communication connection, including: the wearable device can establish a first ACL link with a first terminal; subsequently, if the wearable device detects that the user inputs a preset knocking operation through the vibration sensor, the wearable device can send a measuring signal to N terminals (the N terminals do not comprise a first terminal, and N is more than or equal to 1) according to the stored identification information; m (M is more than or equal to 1 and less than or equal to N) terminals which receive the measurement signals in the N terminals can feed back response signals, so that the wearable equipment can receive M response signals from the M terminals, and the response signals are related to the RSSI of the terminals; when the RSSI of the terminal is larger, it indicates that the terminal is closer to the wearable device, and then the wearable device may determine the terminal with the largest RSSI among the M terminals and the first terminal as the second terminal that needs to be connected at this time; further, the wearable device may disconnect a first ACL link with the first terminal and establish a second ACL link with the second terminal.

It can be seen that the user can trigger the wearable device to switch the bluetooth connection device from the first terminal to the second terminal by performing simple knocking operation once, thereby simplifying the operation flow when establishing bluetooth connection between the devices and improving the use experience of the user. In addition, the method does not need to modify the hardware or software of the terminal, so that the method can be applied to various existing terminal devices, and the use scene of the method is improved.

In one possible implementation, the measurement signal is a paging signal, for example, a page request.

In a possible implementation manner, the preset knocking operation includes: an operation in which the user taps the wearable device using a finger or a knuckle; the user uses the wearable device to knock the second terminal; or, the user uses the wearable device to knock the operation of the object around the second terminal. That is to say, the object that the bluetooth headset is tapped in the preset tapping operation may be a finger, a finger joint, a terminal that needs to be switched, or any object near the terminal that needs to be switched, which is not limited in this embodiment of the present application.

In one possible implementation, after the wearable device receives M response signals generated by M terminals in response to the measurement signal, the method further includes: the wearable device may calculate the signal strength of each of the M response signals, respectively, to obtain the RSSI of each of the M terminals. Or, the terminal may also carry its own RSSI in the response signal sent, so that the wearable device may acquire the RSSI of the corresponding terminal from the response signal sent by each terminal.

In addition, the wearable device may further obtain the RSSI of the first terminal based on the first ACL link. In this way, the wearable device may determine the second terminal having the largest RSSI among the M terminals and the first terminal.

In a second aspect, the present application provides a method for establishing a communication connection, including: the wearable device detects that a user inputs a preset knocking operation through a vibration sensor; in response to the tapping operation, the wearable device may send measurement signals to N terminals, N > 1; m (M is more than or equal to 1 and less than or equal to N) terminals which receive the measurement signals in the N terminals can feed back response signals, so that the wearable equipment receives M response signals respectively sent by the M terminals, and the response signals are related to the signal intensity of the terminals; when the signal intensity of the terminal is larger, it is indicated that the terminal is closer to the wearable device, and then the wearable device can determine the terminal with the largest signal intensity among the M terminals as the first terminal needing connection at this time; further, the wearable device establishes a short-range wireless communication connection with the first terminal.

That is to say, no matter whether the wearable device has established short-range wireless communication connection with a certain terminal, the wearable device can respond to the tapping operation input by the user, detect the terminal closest to the wearable device, and establish connection with the terminal, thereby simplifying the operation flow when establishing short-range wireless communication connection between the devices, and improving the use experience of the user.

In one possible implementation manner, the wearable device detects a preset tapping operation input by a user through a vibration sensor, and the method includes: the wearable equipment collects a received vibration signal by using a vibration sensor; when the vibration characteristics of the vibration signal coincide with the vibration characteristics of the preset tapping operation, the wearable device may determine that the user inputs the preset tapping operation.

In a possible implementation manner, the preset knocking operation includes: an operation in which the user taps the wearable device using a finger or a knuckle; the user uses the wearable device to knock the first terminal; or, the user uses the wearable device to knock the operation of the object around the first terminal.

In one possible implementation, the wearable device sends measurement signals to N terminals, including: the wearable device may transmit the measurement signal to the corresponding terminal according to the identification information (e.g., pairing information) of each of the N terminals.

In one possible implementation, the wearable device determining the first terminal includes: the wearable device may calculate a signal strength (e.g., RSSI) of each of the M terminals based on the received M response signals; further, the wearable device may determine the terminal with the greatest signal strength as the first terminal.

In a possible implementation manner, the signal strength refers to: the ratio of the absolute value of the signal intensity to a preset standard value of the signal intensity.

In a third aspect, the present application provides a method for establishing a communication connection, including: the terminal receives a first knocking operation input by a user through a vibration sensor; when the first knocking operation is a preset knocking operation, the terminal starts a preset process to wait for a measurement signal; the terminal receives a measuring signal sent by the wearable equipment; in response to the measurement signal, the terminal establishes a short-range wireless communication connection with the wearable device.

That is to say, the terminal can also detect the knocking operation that the user carried out through the vibration sensor, so, need not to confirm the signal strength of each terminal after the bluetooth headset sends the measuring signal again, and the terminal that detects the knocking operation can regard as connecting device and bluetooth headset voluntarily and establish the bluetooth and be connected to the time that the bluetooth headset consumed when connecting terminal has been shortened. And the user can trigger the Bluetooth headset to quickly establish communication connection with the corresponding terminal by executing simple knocking operation once, so that the operation flow when the communication connection is established between the devices is simplified, and the use experience of the user is improved.

In a possible implementation manner, the preset knocking operation is: the user taps the operation of the terminal using the wearable device.

In one possible implementation manner, after the terminal receives the first tapping operation of the user input through the vibration sensor, the method further includes: when the vibration characteristic of the first tapping operation coincides with the vibration characteristic of the preset tapping operation, the terminal may determine that the first tapping operation is the preset tapping operation.

In one possible implementation manner, before the terminal establishes the short-range wireless communication connection with the wearable device, the method further includes: the terminal acquires a vibration signal of a second knocking operation acquired by the wearable device; wherein, the terminal responds to the measuring signal and establishes short distance wireless communication connection with wearable equipment automatically, include: when the vibration signal of the second knocking operation and the vibration signal of the first knocking operation are from the same knocking operation, the fact that the user uses the Bluetooth headset to knock the terminal is indicated, namely the user wants the terminal to be used as connecting equipment of the Bluetooth headset, and at the moment, the terminal can be in short-distance wireless communication connection with the wearable equipment.

In one possible implementation, the short-range wireless communication connection may be a bluetooth connection, and the measurement signal may be a paging signal.

In a fourth aspect, the present application provides a wearable device comprising: a vibration sensor for acquiring a vibration signal generated by the wearable device; one or more processors; a communication module; a memory having one or more computer programs stored therein, the one or more computer programs stored in the memory being executable by the processor when the wearable device is running to cause the wearable device to perform any of the methods of establishing a communication connection described above.

In a fifth aspect, the present application provides a terminal, comprising: a vibration sensor for acquiring a vibration signal generated by the wearable device; a touch screen; one or more processors; a communication module; a memory, in which one or more computer programs are stored, which, when the terminal is running, executes the one or more computer programs stored in the memory, so that the terminal can perform any of the above-mentioned methods of establishing a communication connection.

In a sixth aspect, the present application provides a computer storage medium, which includes computer instructions, when the computer instructions are executed on the wearable device or the terminal, the wearable device or the terminal executes any one of the above methods for establishing a communication connection.

In a seventh aspect, the present application provides a computer program product, which when run on the wearable device or the terminal, causes the wearable device or the terminal to execute any one of the above methods for establishing a communication connection.

In an eighth aspect, the present application provides a chip system comprising at least one processor and at least one interface circuit; the interface circuit is used for reading the instruction stored in the memory and sending the instruction to the processor; when executed by a processor, the instructions cause the wearable device or the terminal to perform any one of the methods for establishing a communication connection.

It can be understood that the wearable device, the terminal, the computer storage medium, the computer program product, and the chip system provided above are all configured to execute the corresponding method provided above, and therefore, the beneficial effects achieved by the wearable device, the terminal, the computer storage medium, the computer program product, and the chip system are not described herein again.

Drawings

Fig. 1 is a schematic architecture diagram of a communication system according to an embodiment of the present application;

fig. 2 is a first structural schematic diagram of a wearable device according to an embodiment of the present disclosure;

fig. 3 is a first schematic structural diagram of a terminal according to an embodiment of the present disclosure;

fig. 4 is a first interaction diagram of a method for establishing a communication connection according to an embodiment of the present application;

fig. 5 is a first scenario diagram illustrating a method for establishing a communication connection according to an embodiment of the present application;

fig. 6 is a second scenario diagram of a method for establishing a communication connection according to an embodiment of the present application;

fig. 7 is a second interaction diagram of a method for establishing a communication connection according to an embodiment of the present application;

fig. 8 is a third scenario schematic diagram of a method for establishing a communication connection according to an embodiment of the present application;

fig. 9 is a schematic structural diagram of a wearable device according to an embodiment of the present application;

fig. 10 is a schematic structural diagram of a terminal according to an embodiment of the present application;

fig. 11 is a schematic structural diagram of a chip system according to an embodiment of the present disclosure.

Detailed Description

Embodiments of the present embodiment will be described in detail below with reference to the accompanying drawings.

Illustratively, a method for establishing a communication connection provided in the embodiments of the present application may be applied to the communication system 100 shown in fig. 1. A wearable device 101 and one or more terminals 102 may be included in the communication system 100.

Wherein, above-mentioned wearable equipment 101 can be equipment such as wireless earphone, intelligent bracelet, intelligent wrist-watch or intelligent glasses. The terminal 102 may be a mobile phone, a tablet computer, a notebook computer, an ultra-mobile personal computer (UMPC), a Personal Digital Assistant (PDA), and the like, which is not limited in this embodiment.

In the communication system 100, the wearable device 101 may respectively establish a short-range wireless communication connection with the one or more terminals 102, so as to implement a communication function between the wearable device 101 and the terminals 102. For example, the wearable device 101 may establish a bluetooth connection, a Wi-Fi (wireless fidelity) connection, a ZigBee (ZigBee protocol) connection, or an NFC (near field communication) connection, etc. communication connection with the terminal 102. Of course, the wearable device 101 may also establish a communication connection through a cellular network interconnection or switching device (e.g., a USB data line or a Dock device), which is not limited in this respect by the embodiment of the present invention.

As shown in fig. 2, a vibration sensor 201 may be provided in the wearable device 101. The vibration sensor 201 may be used to detect a vibration signal generated by the wearable device 101. For example, the vibration sensor 201 may be an acceleration sensor or a gyroscope, and the embodiment of the present application does not limit this.

In this embodiment of the application, a user may trigger the wearable device 101 to automatically establish a short-range wireless communication connection with the tapped or collided terminal 102 in a manner that the wearable device 101 and the terminal 102 generate tapping or collision.

For example, taking a bluetooth headset as an example of the wearable device 101, a pair of bluetooth headsets may include a left earpiece and a right earpiece. Taking a certain earplug (e.g., a left earplug) in the bluetooth headset as an example, as shown in fig. 2, a vibration sensor 201 may be disposed in the left earplug, and the vibration sensor 201 may be used to collect a vibration signal generated by the left earplug. Furthermore, it can be preset that tapping a certain terminal 102 with the left earphone of the bluetooth headset continuously triggers the bluetooth headset to establish a bluetooth connection with the terminal 102 (e.g., the mobile phone a).

For example, the vibration sensor 201 in the left earplug can be set to be in a normally open state (always on), and the vibration sensor 201 can continuously collect the vibration signal generated by the left earplug. In general, a vibration signal generated from a left earphone of a bluetooth headset due to a double-tap operation performed on the left earphone generally has a fixed vibration characteristic. For example, when a double tap operation is performed on the left ear plug, the waveform characteristics generated by the vibration sensor 201 are generally certain. Therefore, when the vibration signal collected by the vibration sensor 201 conforms to the preset vibration characteristic, it indicates that the user uses the left earplug of the bluetooth headset to tap a certain terminal twice, and the user wishes to establish a bluetooth connection between the bluetooth headset and the tapped terminal.

Illustratively, the bluetooth headset may have stored therein identification information of one or more terminals. For example, the identification information may be: pairing information of one or more terminals that have completed bluetooth pairing with the bluetooth headset may include, for example, identification of a MAC (media access control) address, a device name, and the like of the terminal. When detecting that the user performs the preset twice-tapping operation by using the left earplug, the bluetooth headset may send a measurement signal to one or more terminals 102 according to the stored identifiers of the terminals, so as to determine the connection device that needs to establish the bluetooth connection with the bluetooth headset. For example, if pairing information of the mobile phone a and the mobile phone B is stored in the bluetooth headset, it indicates that the bluetooth headset and the mobile phone a and the mobile phone B both establish a bluetooth pairing process. Then, after detecting that the user performs the preset operation of twice knocking, the bluetooth headset may send the measurement signal to the mobile phone a according to the pairing information of the mobile phone a, and send the measurement signal to the mobile phone B according to the pairing information of the mobile phone B. For example, the measurement signal sent by the bluetooth headset to the mobile phone a and the mobile phone B may specifically be a page request (page request) initiated by the bluetooth device.

In addition, a connection mechanism is reserved in the existing bluetooth device, namely, the bluetooth function of the bluetooth device can be automatically connected with the latest connection device after being started. For example, after the user turns on the bluetooth headset, the bluetooth headset may automatically connect back to the notebook 1 that was connected last time. If the bluetooth headset does not successfully connect back to the notebook 1 and it is detected that the user performs a preset tapping operation, the bluetooth headset may transmit a measurement signal to each terminal according to the identifier of the terminal according to the above method.

Still take the example that the bluetooth headset sends the measurement signal to the mobile phone a and the mobile phone B, after the mobile phone a and the mobile phone B receive the measurement signal sent by the bluetooth headset, the mobile phone a and the mobile phone B can send corresponding response signals to the bluetooth headset, and the response signals can reflect the signal intensity of the sender (i.e., the corresponding terminal). For example, the response signal may be a page response signal. For example, handset a may send a first response signal to the bluetooth headset in response to the measurement signal, and handset B may send a second response signal to the bluetooth headset in response to the measurement signal.

Generally, a device to which a user desires a bluetooth headset to connect is a terminal that the bluetooth headset taps. Moreover, when a user uses a bluetooth headset to tap a certain terminal, the distance between the terminal and the bluetooth headset is generally very close. And when the signal strength of the response signal received by the bluetooth headset is higher, the higher the signal strength of the terminal sending the response signal is, the closer the distance between the bluetooth headset and the terminal sending the response signal is. Then, the bluetooth headset may determine the terminal with the largest signal strength as the connection device that needs to establish the bluetooth connection with the bluetooth headset. For example, when the signal strength of the first response signal is greater than the signal strength of the second response signal, it is indicated that the signal strength of the mobile phone a is greater than the signal strength of the mobile phone B, and the bluetooth headset may determine the mobile phone a that sends the first response signal as the connection device that needs to establish bluetooth connection with the bluetooth headset this time. Furthermore, the bluetooth headset may establish an ACL (asynchronous connection less) link between the bluetooth headset and the mobile phone a according to a standard bluetooth protocol, thereby implementing bluetooth connection between the bluetooth headset and the mobile phone a.

In addition, in a scenario where the bluetooth headset and another terminal (e.g., the mobile phone C) have already established a bluetooth connection, the user may also trigger the bluetooth headset to switch its connection device from the mobile phone C to a new connection device (e.g., the mobile phone a) according to the above method by performing a preset tapping operation.

That is to say, the user can trigger the wearable device to establish short-distance wireless communication connection with corresponding connecting device fast by executing simple knocking operation once, thereby simplifying the operation flow when establishing short-distance wireless communication connection between the devices and improving the use experience of the user. In addition, the method for establishing the short-distance wireless communication connection does not need to modify hardware or software of the connecting equipment, so that the method for establishing the short-distance wireless communication connection can be applicable to various existing terminal equipment, and the use scene of the method for establishing the short-distance wireless communication connection is improved.

Further, for example, a bluetooth headset is still used as the wearable device 101, and the bluetooth headset may be specifically a True Wireless Stereo (TWS) headset, or a wireless headset with a connection line, and the like, which is not limited in this embodiment of the present invention.

As shown in fig. 2, the earpiece of the bluetooth headset may further include a processor 202, a memory 203, a wireless communication module 204, an audio module 205, a receiver 206, a microphone 207, a power supply 208, and the like, in addition to the vibration sensor 201.

The memory 203 may be used for storing application code, such as for establishing a wireless connection with another ear piece of a bluetooth headset and for enabling the ear piece to make a pairing connection with the terminal 102. The processor 202 may control execution of the above application program codes to implement the functions of the earpiece of the bluetooth headset in the embodiment of the present application. For example, measuring channel quality, amount of data to be transmitted, etc. of a link between a bluetooth headset and an electronic device is implemented.

The memory 203 may also have stored therein a bluetooth address for uniquely identifying the earpiece and a bluetooth address of another earpiece of the bluetooth headset. In addition, the memory 203 may also store a pairing history of the terminal 102 that was successfully paired with the earplug before. For example, the pairing history may include the bluetooth address of the terminal 102 that was successfully paired with the ear bud. Based on the pairing history, the ear bud can automatically return to the paired terminal 102. The bluetooth address may be a Media Access Control (MAC) address.

A wireless communication module 204 for supporting wireless data exchange between the current earpiece and another earpiece of the bluetooth headset and with various terminals 102. In some embodiments, the wireless communication module 204 may be a bluetooth transceiver. The earpiece of the bluetooth headset may establish a wireless connection with the terminal 102 via the bluetooth transceiver to enable short-range data exchange therebetween. For example, audio data is exchanged, control data is exchanged, etc.

The audio module 205 is used to convert digital audio information into an analog audio signal output and also to convert an analog audio input into a digital audio signal. The audio module 205 may further include an encoder and a decoder for encoding and decoding the audio signal. In some embodiments, the audio module 205 may be disposed in the processor 202, or some functional modules of the audio module 205 may be disposed in the processor 202.

At least one receiver 206, which may also be referred to as a "headset," may be used to convert the electrical audio signals into sound signals and play them. For example, when the earphone of the bluetooth headset is used as the audio output device of the terminal 102, the receiver 206 can convert the received audio electrical signal into a sound signal and play the sound signal.

At least one microphone 207, which may also be referred to as a "microphone", is used to convert sound signals into electrical audio signals. For example, when the ear-piece of the bluetooth headset is used as the audio input device of the terminal 102, the microphone 207 can collect the voice signal of the user and convert the voice signal into an audio electrical signal during the process of speaking (such as talking or sending voice message) by the user. The audio electrical signal is the audio data in the embodiment of the present application.

A power supply 208 may be used to power the various components contained in the earplugs of the bluetooth headset. In some embodiments, the power source 208 may be a battery, such as a rechargeable battery. Typically, a bluetooth headset will be provided with a headset case. This earphone box can be used for accomodating bluetooth headset's left and right sides earplug. This earphone box can be used for accomodating bluetooth headset's left earplug and right earplug. In some embodiments, the earphone box may be provided with at least one touch control, which may be used to trigger operations such as the bluetooth earphone being re-paired with the terminal 102. The earphone box can be further provided with a charging port for charging the earphone box. For another example, the earphone box can also charge the left and right earplugs of the Bluetooth earphone. It is understood that other controls may be included on the earphone box, and are not described herein.

It is to be understood that the illustrated structure of the embodiments of the present application does not constitute a specific limitation to the bluetooth headset. It may have more or fewer components than shown in fig. 2, may combine two or more components, or may have a different configuration of components. For example, the bluetooth headset may further include: distance sensor, proximity light sensor, pilot lamp (can instruct the state such as the electric quantity of earplug), display screen (can indicate user's relevant information), dust screen (can cooperate the earphone to use), parts such as motor. The various components shown in fig. 2 may be implemented in hardware, software, or a combination of hardware and software, including one or more signal processing or application specific integrated circuits.

As shown in fig. 3, the terminal 102 in the communication system 100 may be a mobile phone. The mobile phone may include a processor 110, an external memory interface 120, an internal memory 121, an antenna 1, an antenna 2, a mobile communication module 150, a wireless communication module 160, an audio module 170, a speaker 170A, a receiver 170B, a microphone 170C, an earphone interface 170D, a sensor module 180, a camera 193, a display screen 194, and the like.

It is to be understood that the illustrated structure of the embodiment of the present invention is not to be specifically limited to a mobile phone. In other embodiments of the present application, the handset may include more or fewer components than shown, or combine certain components, or split certain components, or a different arrangement of components. The illustrated components may be implemented in hardware, software, or a combination of software and hardware.

Processor 110 may include one or more processing units, such as: the processor 110 may include an Application Processor (AP), a modem processor, a Graphics Processing Unit (GPU), an Image Signal Processor (ISP), a controller, a video codec, a Digital Signal Processor (DSP), a baseband processor, and/or a neural-Network Processing Unit (NPU), etc. The different processing units may be separate devices or may be integrated into one or more processors. A memory may also be provided in processor 110 for storing instructions and data.

In some embodiments, processor 110 may include one or more interfaces. The interface may include an integrated circuit (I2C) interface, an integrated circuit built-in audio (I2S) interface, a Pulse Code Modulation (PCM) interface, a universal asynchronous receiver/transmitter (UART) interface, a Mobile Industry Processor Interface (MIPI), a general-purpose input/output (GPIO) interface, a Subscriber Identity Module (SIM) interface, and/or a Universal Serial Bus (USB) interface, etc.

The wireless communication function of the mobile phone can be realized by the antenna 1, the antenna 2, the mobile communication module 150, the wireless communication module 160, the modem processor, the baseband processor, and the like.

The antennas 1 and 2 are used for transmitting and receiving electromagnetic wave signals. Each antenna in the handset may be used to cover a single or multiple communication bands. Different antennas can also be multiplexed to improve the utilization of the antennas. For example: the antenna 1 may be multiplexed as a diversity antenna of a wireless local area network. In other embodiments, the antenna may be used in conjunction with a tuning switch.

The mobile communication module 150 may provide a solution including wireless communication of 2G/3G/4G/5G, etc. applied to a mobile phone. The mobile communication module 150 may include one or more filters, switches, power amplifiers, Low Noise Amplifiers (LNAs), and the like. The mobile communication module 150 may receive the electromagnetic wave from the antenna 1, filter, amplify, etc. the received electromagnetic wave, and transmit the electromagnetic wave to the modem processor for demodulation. The mobile communication module 150 may also amplify the signal modulated by the modem processor, and convert the signal into electromagnetic wave through the antenna 1 to radiate the electromagnetic wave. In some embodiments, at least some of the functional modules of the mobile communication module 150 may be disposed in the processor 110. In some embodiments, at least some of the functional modules of the mobile communication module 150 may be disposed in the same device as at least some of the modules of the processor 110.

The wireless communication module 160 may provide solutions for wireless communication applied to a mobile phone, including Wireless Local Area Networks (WLANs) (e.g., wireless fidelity (Wi-Fi) networks), Bluetooth (BT), Global Navigation Satellite System (GNSS), Frequency Modulation (FM), Near Field Communication (NFC), Infrared (IR), and the like. The wireless communication module 160 may be one or more devices that integrate one or more communication processing modules. The wireless communication module 160 receives electromagnetic waves via the antenna 2, performs frequency modulation and filtering processing on electromagnetic wave signals, and transmits the processed signals to the processor 110. The wireless communication module 160 may also receive a signal to be transmitted from the processor 110, perform frequency modulation and amplification on the signal, and convert the signal into electromagnetic waves through the antenna 2 to radiate the electromagnetic waves.

In some embodiments, the handset antenna 1 is coupled to the mobile communication module 150 and the handset antenna 2 is coupled to the wireless communication module 160 so that the handset can communicate with the network and other devices via wireless communication techniques.

The mobile phone realizes the display function through the GPU, the display screen 194, the application processor and the like. The GPU is a microprocessor for image processing, and is connected to the display screen 194 and an application processor. The GPU is used to perform mathematical and geometric calculations for graphics rendering. The processor 110 may include one or more GPUs that execute program instructions to generate or alter display information.

The display screen 194 is used to display images, video, and the like. The display screen 194 includes a display panel. The display panel may adopt a Liquid Crystal Display (LCD), an organic light-emitting diode (OLED), an active-matrix organic light-emitting diode (active-matrix organic light-emitting diode, AMOLED), a flexible light-emitting diode (FLED), a miniature, a Micro-oeld, a quantum dot light-emitting diode (QLED), and the like. In some embodiments, the cell phone may include 1 or N display screens 194, with N being a positive integer greater than 1.

The mobile phone can realize shooting function through the ISP, the camera 193, the video codec, the GPU, the display screen 194, the application processor and the like.

The ISP is used to process the data fed back by the camera 193. For example, when a photo is taken, the shutter is opened, light is transmitted to the camera photosensitive element through the lens, the optical signal is converted into an electrical signal, and the camera photosensitive element transmits the electrical signal to the ISP for processing and converting into an image visible to naked eyes. The ISP can also carry out algorithm optimization on the noise, brightness and skin color of the image. The ISP can also optimize parameters such as exposure, color temperature and the like of a shooting scene. In some embodiments, the ISP may be provided in camera 193.

The camera 193 is used to capture still images or video. In some embodiments, the handset 100 may include 1 or N cameras, N being a positive integer greater than 1. The camera 193 may be a front camera or a rear camera.

The digital signal processor is used for processing digital signals, and can process digital image signals and other digital signals. For example, when the mobile phone selects the frequency point, the digital signal processor is used for performing fourier transform and the like on the frequency point energy.

Video codecs are used to compress or decompress digital video. The handset may support one or more video codecs. Thus, the mobile phone can play or record videos in various encoding formats, such as: moving Picture Experts Group (MPEG) 1, MPEG2, MPEG3, MPEG4, and the like.

The external memory interface 120 may be used to connect an external memory card, such as a Micro SD card, to extend the storage capability of the mobile phone. The external memory card communicates with the processor 110 through the external memory interface 120 to implement a data storage function. For example, files such as music, video, etc. are saved in an external memory card.

Internal memory 121 may be used to store one or more computer programs, including instructions. The processor 110 may execute the above instructions stored in the internal memory 121, so as to enable the mobile phone to execute the method for intelligently recommending contacts, as well as various functional applications and data processing, and the like, provided in some embodiments of the present application. The internal memory 121 may include a program storage area and a data storage area. Wherein, the storage program area can store an operating system; the storage area may also store one or more application programs (e.g., gallery, contacts, etc.), etc. The data storage area can store data (such as photos, contacts and the like) created in the use process of the mobile phone and the like. In addition, the internal memory 121 may include a high-speed random access memory, and may also include a nonvolatile memory, such as one or more magnetic disk storage devices, flash memory devices, Universal Flash Storage (UFS), and the like. In other embodiments, the processor 110 may cause the mobile phone to execute the method for intelligently recommending numbers provided in the embodiments of the present application, and various functional applications and data processing by executing instructions stored in the internal memory 121 and/or instructions stored in a memory provided in the processor.

The mobile phone can implement audio functions through the audio module 170, the speaker 170A, the receiver 170B, the microphone 170C, the earphone interface 170D, and the application processor. Such as music playing, recording, etc.

The audio module 170 is used to convert digital audio information into an analog audio signal output and also to convert an analog audio input into a digital audio signal. The audio module 170 may also be used to encode and decode audio signals. In some embodiments, the audio module 170 may be disposed in the processor 110, or some functional modules of the audio module 170 may be disposed in the processor 110.

The speaker 170A, also called a "horn", is used to convert the audio electrical signal into an acoustic signal. The handset can listen to music through the speaker 170A or listen to a hands-free conversation.

The receiver 170B, also called "earpiece", is used to convert the electrical audio signal into an acoustic signal. When the mobile phone receives a call or voice information, the receiver 170B can be close to the ear to receive voice.

The microphone 170C, also referred to as a "microphone," is used to convert sound signals into electrical signals. When making a call or transmitting voice information, the user can input a voice signal to the microphone 170C by speaking the user's mouth near the microphone 170C. The handset may be provided with one or more microphones 170C. In other embodiments, the mobile phone may be provided with two microphones 170C to achieve the noise reduction function in addition to collecting the sound signal. In other embodiments, the mobile phone may further include three, four or more microphones 170C to collect sound signals, reduce noise, identify sound sources, and implement directional recording functions.

The headphone interface 170D is used to connect a wired headphone. The headset interface 170D may be a USB interface, or may be a 3.5mm open mobile electronic device platform (OMTP) standard interface, a cellular telecommunications industry association (cellular telecommunications industry association of the USA, CTIA) standard interface.

The sensor module 180 may include a pressure sensor, a gyroscope sensor, an air pressure sensor, a magnetic sensor, an acceleration sensor, a distance sensor, a proximity light sensor, a fingerprint sensor, a temperature sensor, a touch sensor, an ambient light sensor, a bone conduction sensor, and the like, which is not limited in this embodiment.

Hereinafter, a method for establishing a communication connection according to an embodiment of the present application will be described in detail with reference to the accompanying drawings. In the following embodiments, a bluetooth headset is used as the wearable device 101, and a pairing device of the bluetooth headset includes a mobile phone a and a mobile phone B.

Fig. 4 is a flowchart illustrating a method for establishing a communication connection according to an embodiment of the present application. As shown in fig. 4, the method may include:

s401, the Bluetooth headset plays audio content from the mobile phone A, and the Bluetooth headset and the mobile phone A establish Bluetooth connection.

Illustratively, when a user wishes to play audio content in the mobile phone a by using the bluetooth headset, the bluetooth headset and the bluetooth function in the mobile phone a may be turned on, and a bluetooth connection between the mobile phone a and the bluetooth headset may be established. For example, as shown in fig. 5, the mobile phone a may display a list of bluetooth devices that have been connected in the bluetooth function setting interface 501. One or more Bluetooth devices in the Bluetooth device list are all Bluetooth devices which complete Bluetooth pairing with the mobile phone A once. After the mobile phone a successfully pairs with the new bluetooth device each time, the mobile phone a may add the bluetooth device to the bluetooth device list. Also, the mobile phone a may store pairing information of each paired bluetooth device, i.e., identification information of the bluetooth device. For example, the pairing information may include a name of the bluetooth device, a MAC address of the bluetooth device, and the like, which is not limited in this embodiment.

If the bluetooth headset is located in the bluetooth device list displayed by the mobile phone a, the user may select the bluetooth headset in the setting interface 501 after turning on the bluetooth headset (for example, the option of "my headset" in the bluetooth device list). Further, the mobile phone a may send a paging signal (page request) to the bluetooth headset according to the stored pairing information of the bluetooth headset. After the bluetooth headset receives the page request sent by the mobile phone a, since the bluetooth headset also stores the pairing information of the mobile phone a, the bluetooth headset can send a corresponding response signal (page response) to the mobile phone a. After receiving the page response sent by the Bluetooth headset, the mobile phone A can establish a first ACL link with the Bluetooth headset, so that Bluetooth connection between the mobile phone A and the Bluetooth headset is realized.

Of course, if the mobile phone a has not established the bluetooth connection with the bluetooth headset, the mobile phone a may pair with the bluetooth headset after searching for the bluetooth headset, and then establish the bluetooth connection with the bluetooth headset according to the above-mentioned establishment procedure of the bluetooth connection, which is not limited in this embodiment of the present application.

After the Bluetooth earphone is connected with the mobile phone A through Bluetooth, the mobile phone A can be used as a connecting device of the Bluetooth earphone, the audio content in the mobile phone A is output to the Bluetooth earphone, and the Bluetooth earphone plays the audio content to a user.

S402, the Bluetooth headset detects that the user inputs preset knocking operation.

While the bluetooth headset is playing the audio content in the mobile phone a, if the user wishes to switch the connection device of the bluetooth headset from the mobile phone a to the mobile phone B, the user may perform a preset tapping operation on the mobile phone B using the bluetooth headset (e.g., the left ear plug or the right ear plug of a pair of bluetooth headsets), as shown in fig. 6. In some embodiments, the preset tapping operation may be an operation in which the user taps the terminal waiting for connection (e.g., the handset B) using a bluetooth headset. For example, the preset tapping operation may be specifically an operation of tapping two mobile phones B in succession using a bluetooth headset. The preset tapping operation is used for triggering the Bluetooth headset to switch the connection device of the Bluetooth headset from the connected mobile phone A to the mobile phone B.

For example, a vibration sensor such as an acceleration sensor may be provided in the bluetooth headset. After the Bluetooth headset is started, the acceleration sensor can be controlled by the Bluetooth headset to acquire a current vibration signal at a certain working frequency. Furthermore, the Bluetooth headset can extract corresponding vibration characteristics from the collected vibration signals in real time. If the vibration characteristics extracted at a certain time coincide with the vibration characteristics of the preset tapping operation, the bluetooth headset may determine that the user has input the preset tapping operation at this time.

For example, a bluetooth headset may extract a corresponding vibration waveform in real time from the acquired vibration signal. The Bluetooth headset can analyze whether the extracted vibration waveform is a vibration waveform generated by continuously knocking the Bluetooth headset for two times by using a preset waveform algorithm. If the acquired vibration waveform is a vibration waveform generated by continuously tapping two times by the Bluetooth headset, the Bluetooth headset can determine that the user continuously taps two times to a certain terminal by using the Bluetooth headset at the moment. Further, the Bluetooth headset may determine a new connected device to which the Bluetooth headset needs to be switched by performing the following steps S403-S404.

In other embodiments, in addition to tapping the other terminal using the bluetooth headset as the preset tapping operation, the operation of tapping the bluetooth headset by a finger or a finger joint of the user may be set as the preset tapping operation. That is, when the user wants to replace the connection device of the bluetooth headset, the user can directly perform a preset tapping operation (for example, tapping the bluetooth headset with a finger joint) on the bluetooth headset worn without removing the headset, thereby triggering the bluetooth headset to determine a new connection device to which the bluetooth headset needs to be switched by performing the following steps S403 to S404.

Still alternatively, if the user wishes to switch the connection device of the bluetooth headset from the mobile phone a to the mobile phone B, the user may also perform a tapping operation near the mobile phone B using the bluetooth headset, for example, tapping both sides of a desk near the mobile phone B using the bluetooth headset. At this time, the preset tapping operation refers to a tapping operation performed by the user near the terminal to be connected using the bluetooth headset. Also, after the bluetooth headset detects the preset tap operation, a new connection device to which the bluetooth headset should be switched may be determined by performing the following steps S403 to S404.

It can be seen that the object for tapping the bluetooth headset in the preset tapping operation may be a finger, a finger joint, a terminal to be switched, or any object near the terminal to be switched, which is not limited in this embodiment of the present application.

And S403, responding to the knocking operation, and sending a measuring signal to the mobile phone B by the Bluetooth headset.

After the Bluetooth headset detects that the user inputs the preset knocking operation, the Bluetooth headset indicates that the user wants to replace the current connecting equipment of the Bluetooth headset. But at this point the bluetooth headset cannot determine which terminal the user wishes to replace the new connected device.

In this regard, in step S403, in order to determine the connected device that the bluetooth headset needs to be replaced at this time, the bluetooth headset may transmit a measurement signal to one or more paired bluetooth devices, respectively. Similar to the bluetooth device list of the mobile phone a shown in fig. 5, pairing information of one or more paired bluetooth devices may also be stored in the bluetooth headset. For example, the pairing information of the mobile phone B is stored in the bluetooth headset, and in order to determine the connection device that needs to be replaced at this time, the bluetooth headset may send a measurement signal to the mobile phone B according to the pairing information of the mobile phone B. For example, the measurement signal may be a paging signal (page request).

Of course, if the bluetooth headset further stores identification information of other terminals such as the mobile phone C, the bluetooth headset may also send measurement signals to these terminals according to the identification information. In addition, because the bluetooth headset has already established bluetooth connection with the mobile phone a, the bluetooth headset can interact with the mobile phone a through the bluetooth headset to acquire information such as signal strength of the mobile phone a, and therefore, after the bluetooth headset detects the knocking operation, a measurement signal does not need to be sent to the mobile phone a.

For example, the bluetooth headset may send a paging signal (page request) to the mobile phone B according to the procedure of establishing the ACL link, where the paging signal is the measurement signal. Meanwhile, after the Bluetooth function is started, the mobile phone B can receive paging signals sent by other equipment.

Then, after receiving the paging signal (i.e., the measurement signal) from the bluetooth headset, the handset B may send a page response (i.e., a response signal) to the bluetooth headset in response to the paging signal. Further, the Bluetooth headset may continue to perform steps S404-S405, described below.

S404, the Bluetooth headset determines the signal intensity of the mobile phone A and the mobile phone B.

S405, if the signal intensity of the mobile phone B is maximum, the Bluetooth connection between the Bluetooth earphone and the mobile phone A is disconnected, and the Bluetooth connection between the Bluetooth earphone and the mobile phone B is established.

In step S404, after the bluetooth headset receives the response signal sent by another bluetooth device (for example, the above-mentioned mobile phone B), since the response signal sent by the mobile phone B is associated with the signal strength of the mobile phone B, the bluetooth headset may determine the signal strength of the mobile phone B, for example, the RSSI (received signal strength indication) of the mobile phone B according to the response signal. For example, the bluetooth headset may calculate the RSSI of the mobile phone B according to a preset formula based on the response signal sent by the mobile phone B. Or, if the response signal sent by the mobile phone B carries the RSSI of the mobile phone B, the bluetooth headset may obtain the RSSI of the mobile phone B from the preset field of the response signal.

Moreover, since the bluetooth connection is already established between the bluetooth headset and the mobile phone a, the bluetooth headset may acquire the signal strength of the mobile phone a, for example, the RSSI of the mobile phone a, based on the bluetooth connection.

When a user performs a preset tapping operation on a new connection device using a bluetooth headset, the distance between the bluetooth headset and the new connection device is generally short. When the distance between two devices is closer, the signal strength of the two devices in signal interaction is increased correspondingly. Accordingly, the attenuation of the signal strength when two devices perform signal interaction gradually increases as the distance between the two devices increases. As shown in table 1, for example, when the device 1 sends a signal to the device 2, the signal transmission power F of the device 1 is 2400 Hz. In the process of increasing the distance between the device 1 and the device 2 from 0.1m to 1m, the attenuation value of the signal transmitted by the device 1 gradually increases, i.e. the strength of the signal transmitted by the device 1 gradually decreases.

TABLE 1

Description of the invention	Los (attenuation/dB)	D (distance/m)	F (transmitting power/Hz)
				Attenuation of 0.1m	20.04422483	0.1	2400
Attenuation of 0.2m	26.06482475	0.2	2400
				Attenuation of 0.3m	29.58664993	0.3	2400
Attenuation of 0.4m	32.08542466	0.4	2400
				Attenuation of 0.5m	34.02362492	0.5	2400
Attenuation of 1.0m	40.04422483	1.0	2400

After receiving the response signals sent by one or more bluetooth devices, the bluetooth headset may respectively obtain the signal strength of each response signal, thereby obtaining the signal strength of each bluetooth device corresponding to each response signal. And the Bluetooth headset can acquire the signal intensity of the mobile phone A from the connected mobile phone A. Further, the bluetooth headset may determine a bluetooth device having the greatest signal strength among the plurality of bluetooth devices as a new connected device.

In other embodiments, the response signal may be BLE (bluetooth low energy) broadcast in addition to page response. For example, if the handset a and the handset B are BLE bluetooth devices, the handset a and the handset B may periodically transmit advertising data (broadcast data) in the form of BLE broadcast based on a BLE protocol. The advertising data is used for indicating that the current BLE Bluetooth device is in a connectable state. Then, after receiving the advertisement data sent by the mobile phone a and the mobile phone B, the bluetooth headset may calculate the signal strength of the advertisement data sent by the mobile phone a and the mobile phone B, respectively, so as to determine the signal strength of the mobile phone a and the mobile phone B. Further, the bluetooth headset may determine the bluetooth device having the greatest signal strength as the new connected device.

For example, after receiving the response signal from the handset B, the bluetooth headset may calculate the RSSI of the response signal. The bluetooth headset may use the RSSI of the response signal as the RSSI of the handset B. And the bluetooth headset can acquire the RSSI of the mobile phone a from the mobile phone a. Or, the bluetooth headset may calculate the RSSI of the mobile phone a according to the bluetooth signal sent by the mobile phone a. If the RSSI of the mobile phone B is detected to be larger than the RSSI of the mobile phone A, the distance between the Bluetooth headset and the mobile phone B is shorter, and the user is likely to use the Bluetooth headset to execute preset knocking operation on the mobile phone B. Furthermore, the bluetooth headset may determine the mobile phone B as the connection device that needs to establish the bluetooth connection.

Then, in step S405, the bluetooth headset may disconnect the first ACL link established with the mobile phone a and establish a second ACL link with the mobile phone B, that is, the connection device of the bluetooth headset is switched from the mobile phone a to the mobile phone B. In this way, the user can use the bluetooth headset to play the audio content in handset B based on the second ACL link.

Accordingly, if the RSSI of the mobile phone a is detected to be greater than the RSSI of the mobile phone B, it indicates that the user is likely to perform the preset tapping operation on the mobile phone a using the bluetooth headset. However, since the bluetooth headset already establishes the first ACL link with the mobile phone a, the bluetooth headset can continuously maintain the first ACL link with the mobile phone a without switching the current connection device.

In other embodiments, the signal transmission powers set by different bluetooth devices when sending the response signals to the bluetooth headset may be different, and in some scenarios, although the signal strength of the first response signal sent by the mobile phone a to the bluetooth headset is greater than the signal strength of the second response signal sent by the mobile phone B to the bluetooth headset, since the signal transmission power of the mobile phone a is greater than the signal transmission power of the mobile phone B, when the distance between the mobile phone a and the bluetooth headset is greater than the distance between the mobile phone B and the bluetooth headset, the signal strength of the first response signal received by the bluetooth headset may also be greater than the signal strength of the second response signal. As a result, the connected device determined by the bluetooth headset based on the measured value of the signal strength may be inaccurate.

In this regard, after the bluetooth headset acquires the measured values of the signal strengths corresponding to the response signals, the bluetooth headset may calculate the relative signal strengths of the response signals, and then determine the bluetooth device corresponding to the response signal with the largest relative signal strength as the new connection device. Wherein, the relative signal strength refers to: the ratio of the measured value of the signal intensity to the preset signal intensity standard value. Generally, the signal strength standard values of different types or models of equipment are different. Illustratively, the signal strength criterion value can be a nominal maximum signal strength of the device or an actually detected maximum signal strength of the device.

For example, the standard signal strength transmitted by the handset a is 1000dBm, and the standard signal strength transmitted by the handset B is 800 dBm. If the signal strength of the first response signal transmitted by the handset a (i.e., the measured value of the first response signal strength) is detected to be 600dBm, the relative signal strength of the first response signal is 600dBm/1000dBm, which is 0.6. If the signal strength of the second response signal transmitted by the handset B (i.e., the measured value of the second response signal strength) is detected to be 500dBm, the relative signal strength of the second response signal is 500dBm/800dBm, which is 0.625.

It can be seen that although the measured value of the first response signal strength (600dBm) is greater than the measured value of the second response signal strength (500dBm), the relative signal strength of the first response signal (0.6) is less than the relative signal strength of the second response signal (0.625), and the actual handset B is closer to the bluetooth headset. Thus, the bluetooth headset may determine that the handset B that transmitted the second response signal is a new connected device.

Wherein, the signal intensity standard value of each equipment or each kind of equipment can be stored in the bluetooth headset in advance. Therefore, after the Bluetooth headset detects the measured value of the signal intensity of each response signal, the corresponding signal intensity standard value can be searched, and then the relative signal intensity of the response signal is calculated. Therefore, the Bluetooth headset can more accurately determine the connection equipment which needs to establish Bluetooth connection by comparing the relative signal strength of different response signals.

In other embodiments of the present application, a vibration sensor may also be provided in the device struck by the bluetooth headset (e.g., cell phone a or cell phone B described above). In this way, when the user inputs a preset tapping operation to a new connection device (for example, the mobile phone B) by using the bluetooth headset, not only the tapping operation can be detected by the bluetooth headset, but also the tapping operation can be detected by the mobile phone B. Then, the mobile phone B can also actively establish the bluetooth connection with the bluetooth headset, thereby shortening the time consumption for establishing or switching the bluetooth connection.

Illustratively, as shown in fig. 7, a method for establishing a communication connection provided in an embodiment of the present application includes:

s701, the Bluetooth headset plays the audio content from the mobile phone A, and the Bluetooth headset and the mobile phone A are connected in a Bluetooth mode.

Similarly to step S401, in step S701, the user may use the mobile phone a as a connection device of the bluetooth headset, and establish a first ACL link between the mobile phone a and the bluetooth headset. In turn, the user can play the audio content in handset a based on the first ACL link using the bluetooth headset.

S702, the Bluetooth headset detects that the user inputs preset knocking operation.

For example, the user may input a preset tapping operation to the connection device to be switched by using the bluetooth headset to trigger the bluetooth headset to establish a bluetooth connection with the new connection device.

Similar to step S402, in step S702, a vibration sensor is disposed in the bluetooth headset, and the bluetooth headset may use the vibration sensor to acquire a vibration signal generated on the bluetooth headset. And, the bluetooth headset can extract corresponding vibration characteristics from the vibration signal who gathers. If the vibration characteristics extracted at a certain time coincide with the vibration characteristics of the preset tapping operation, the bluetooth headset may determine that the user has input the preset tapping operation at this time, indicating that the user wishes to connect the bluetooth headset to a new connection device at this time.

And S703, the mobile phone B detects that the user inputs preset knocking operation.

In step S703, the vibration sensor described above may also be provided in a candidate connection device (e.g., the handset B) of the bluetooth headset. Therefore, when the user can input preset knocking operation to the mobile phone B by using the Bluetooth headset, the vibration sensor in the mobile phone B can acquire a corresponding vibration signal. Furthermore, the mobile phone B may extract a corresponding vibration feature from the acquired vibration signal. If the extracted vibration characteristics are consistent with the vibration characteristics of the preset knocking operation, the mobile phone B can determine that the user inputs the preset knocking operation at the moment, and the mobile phone B is expected to be connected with the Bluetooth headset as the connection equipment of the Bluetooth headset at the moment.

After detecting that the user inputs a preset tapping operation, the mobile phone B can report the tapping operation to the related application of the Bluetooth function in the application layer. Furthermore, the application can start a preset process to set the mobile phone B as a Master device (Master), and wait for a paging signal sent by other bluetooth devices to trigger the mobile phone B to actively establish bluetooth connection with other bluetooth devices.

And S704, responding to the knocking operation, and sending a paging signal to the mobile phone B by the Bluetooth headset.

Similar to step S403, in step S704, after the bluetooth headset detects that the user inputs a preset tapping operation, a paging signal may be sent to the corresponding bluetooth device according to the stored identification information (e.g., pairing information) of one or more bluetooth devices according to the existing bluetooth connection establishment procedure.

For example, the bluetooth headset stores pairing information of the mobile phone B, and after detecting that the user inputs a preset tapping operation, the bluetooth headset may send a paging signal (page request) to the mobile phone B according to the pairing information of the mobile phone B.

S705, responding to the paging signal, the mobile phone B automatically establishes Bluetooth connection with the Bluetooth headset.

In step S705, since the mobile phone B has determined that there is another device that needs to establish a communication connection with itself (i.e., the mobile phone B) by detecting the preset tapping operation in step S703, the mobile phone B waits for receiving the paging signal in the mode of switching to the master device. Then, after receiving the paging signal sent by the bluetooth headset, the mobile phone B may determine that the device that needs to establish communication connection with the mobile phone B this time is the bluetooth headset. Accordingly, other bluetooth devices receiving the paging signal may not respond to the paging signal after receiving the paging signal from the bluetooth headset because they do not detect the preset tapping operation input by the user before receiving the paging signal.

Furthermore, the mobile phone B can be used as a master device (master) to establish a second ACL link with the bluetooth headset, thereby implementing bluetooth connection between the bluetooth headset and the mobile phone B. When the mobile phone B establishes Bluetooth connection with the Bluetooth headset, the Bluetooth headset can automatically disconnect a first ACL link with the mobile phone A.

In some embodiments, in order to avoid that the mobile phone B establishes a bluetooth connection with an incorrect bluetooth device after receiving the paging signal, the mobile phone B may further obtain, from the bluetooth headset, a vibration signal or a vibration characteristic generated when the user inputs the preset tapping operation after receiving the paging signal sent by the bluetooth headset. Furthermore, the mobile phone B can compare the vibration signal generated by the mobile phone B (i.e., the first vibration signal) with the vibration signal generated by the bluetooth headset (i.e., the second vibration signal), so as to determine whether the two vibration signals are generated by the same tapping operation. For example, when the vibration signal generated by the cellular phone B is the same as the vibration signal generated by the bluetooth headset, it may be determined that the two vibration signals are from the same tap operation. If the two vibration signals are judged to come from the same knocking operation, the fact that the device which the user wants to be connected with the mobile phone B is the Bluetooth headset is indicated, the mobile phone B can actively establish Bluetooth connection with the Bluetooth headset, and therefore the connection device of the Bluetooth headset is switched from the mobile phone A to the mobile phone B.

In the method for establishing communication connection, because each candidate connection device of the bluetooth headset can also detect the knocking operation executed when the connection device is replaced by the user, the bluetooth headset does not need to measure and calculate the signal intensity of a plurality of candidate connection devices, and the candidate connection device which detects the knocking operation can be actively used as a new connection device to establish bluetooth connection with the bluetooth headset, thereby shortening the time consumed when the bluetooth headset switches the connection device. And the user can trigger the Bluetooth headset to quickly establish communication connection with corresponding connecting equipment by executing simple knocking operation once, so that the operation flow when the communication connection is established between the equipment is simplified, and the use experience of the user is improved.

It should be noted that, in the above embodiments, the bluetooth headset is taken as an example of the wearable device, and the bluetooth headset switches the connection device between the mobile phone a and the mobile phone B is taken as an example of an application scenario. It will be appreciated that the above-described method of establishing a communication connection may be applied in a variety of wearable devices and in a variety of application scenarios.

For example, as shown in (a) of fig. 8, after the bluetooth headset establishes a bluetooth connection with the mobile phone a, the bluetooth connection state of the bluetooth headset is in a stable state. If the user wishes to switch the connection device of the bluetooth headset to the notebook B, as shown in (B) of fig. 8, the user can perform a preset tapping operation on the notebook B using the bluetooth headset. Similar to the above embodiment, the bluetooth headset may determine that the connection device that needs to be replaced this time is the notebook B in response to the tapping operation, and at this time, the bluetooth connection state of the bluetooth headset is in the switching state. Further, as shown in (c) of fig. 8, the bluetooth headset may establish a bluetooth connection with the new connection device (i.e., the notebook B), and the bluetooth connection state of the bluetooth headset is again switched to a stable state.

For another example, when the bluetooth headset and the mobile phone a have established a bluetooth connection, if the user wants to play audio content in the in-vehicle device using the bluetooth headset in the automobile, the user may perform a preset tapping operation on the in-vehicle device using the bluetooth headset. Similarly, the Bluetooth headset can respond to the knocking operation to determine that the connecting equipment needing to be replaced at this time is the vehicle-mounted equipment, and then the Bluetooth connection is established with the vehicle-mounted equipment.

For another example, wearable devices such as smart wristbands, smart watches, and smart glasses are generally used as slave devices to establish communication connection with a master device such as a mobile phone through bluetooth or Wi-Fi during operation. Then, according to the method described in the above embodiment, the wearable device is triggered to establish a communication connection with a different host device by performing a preset tapping operation on the wearable device.

In addition, besides the wearable device, the terminals such as the mobile phone, the tablet computer, the sound box and the notebook computer can also establish communication connection with other terminals through Bluetooth or Wi-Fi according to the method. For example, the vibration sensor may be provided in a mobile phone of a user. When a user wants to establish Bluetooth connection between the mobile phone and the Bluetooth sound box, the mobile phone can be used for executing preset knocking operation on the Bluetooth sound box. Furthermore, after the mobile phone detects the knocking operation, the device to be connected with the mobile phone can be determined to be a bluetooth sound box according to the method in the above embodiment, and then the mobile phone can automatically establish bluetooth connection with the bluetooth sound box. Therefore, the user can trigger the two devices to quickly establish the communication connection by executing a simple knocking operation once, so that the operation flow when the communication connection is established between the devices is simplified, and the use experience of the user is improved.

As shown in fig. 9, an embodiment of the present application discloses a wearable device, including: one or more processors 902; a vibration sensor 901; a memory 903; a communication module 906; and one or more computer programs 904. The various devices described above may be connected by one or more communication buses 905. Wherein the one or more computer programs 904 are stored in the memory 903 and configured to be executed by the one or more processors 902, the one or more computer programs 904 comprising instructions that may be used to perform the steps of the present embodiments.

For example, the processor 902 may specifically be the processor 202 shown in fig. 2, the memory 903 may specifically be the internal memory 203 shown in fig. 2, the communication module 906 may specifically be the wireless communication module 204 shown in fig. 2, and the vibration sensor 901 may specifically be the vibration sensor 201 shown in fig. 2, which is not limited in this embodiment of the present invention.

As shown in fig. 10, an embodiment of the present application discloses a terminal, including: a touch screen 1001, the touch screen 1001 including a touch sensor 1006 and a display screen 1007; one or more processors 1002; the vibration sensor 1009; a memory 1003; a communication module 1008; and one or more computer programs 1004. The various devices described above may be connected by one or more communication buses 1005. Wherein the one or more computer programs 1004 are stored in the memory 1003 and configured to be executed by the one or more processors 1002, the one or more computer programs 1004 include instructions that can be used to perform the steps of the present embodiment.

For example, the processor 1002 may specifically be the processor 110 shown in fig. 3, the memory 1003 may specifically be the internal memory 121 shown in fig. 3, the display 1007 may specifically be the display 194 shown in fig. 3, the communication module 1008 may specifically be the mobile communication module 150 and/or the wireless communication module 160 shown in fig. 3, and the touch sensor 1006 may specifically be a touch sensor in the sensor module 180 shown in fig. 3, which is not limited in this embodiment of the present invention.

The embodiment of the present application discloses a chip system, as shown in fig. 11, the chip system includes at least one processor 1101 and at least one interface circuit 1102. The processor 1101 and the interface circuit 1102 may be interconnected by wires. For example, the interface circuit 1102 may be used to receive signals from other devices (e.g., memory, vibration sensors). As another example, the interface circuit 1102 may be used to send signals to other devices (e.g., the processor 1101). Illustratively, the interface circuit 1102 may read instructions stored in the memory and send the instructions to the processor 1101. The instructions, when executed by the processor 1101, may cause the wearable device or terminal described above to perform the various steps in the embodiments described above. Of course, the chip system may further include other discrete devices, which is not specifically limited in this embodiment of the present application.

Through the above description of the embodiments, it is clear to those skilled in the art that, for convenience and simplicity of description, the foregoing division of the functional modules is merely used as an example, and in practical applications, the above function distribution may be completed by different functional modules according to needs, that is, the internal structure of the device may be divided into different functional modules to complete all or part of the above described functions. For the specific working processes of the system, the apparatus and the unit described above, reference may be made to the corresponding processes in the foregoing method embodiments, and details are not described here again.

Each functional unit in the embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.

The integrated unit, if implemented in the form of a software functional unit and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solutions of the embodiments of the present application may be essentially implemented or make a contribution to the prior art, or all or part of the technical solutions may be implemented in the form of a software product stored in a storage medium and including several instructions for causing a computer device (which may be a personal computer, a server, or a network device) or a processor to execute all or part of the steps of the methods described in the embodiments of the present application. And the aforementioned storage medium includes: flash memory, removable hard drive, read only memory, random access memory, magnetic or optical disk, and the like.

The above description is only a specific implementation of the embodiments of the present application, but the scope of the embodiments of the present application is not limited thereto, and any changes or substitutions within the technical scope disclosed in the embodiments of the present application should be covered by the scope of the embodiments of the present application. Therefore, the protection scope of the embodiments of the present application shall be subject to the protection scope of the claims.

Claims

1. A method for establishing a communication connection, comprising:

the wearable equipment and the first terminal establish a first asynchronous connectionless ACL link;

the wearable device detects that a user inputs a preset knocking operation through a vibration sensor;

responding to the knocking operation, the wearable device sends measurement signals to N terminals, the wearable device stores identification information of each terminal in the N terminals, the N terminals do not include the first terminal, and N is larger than or equal to 1;

the wearable device receives M response signals generated by the M terminals in response to the measurement signals, the response signals are associated with the RSSI of the terminal, M is more than or equal to 1 and less than or equal to N, and M, N are integers;

the wearable device determines a second terminal, wherein the second terminal is one of the M terminals, and the second terminal is the terminal with the maximum RSSI among the M terminals and the first terminal;

the wearable device disconnects the first ACL link with the first terminal and establishes a second ACL link with the second terminal.

2. The method of claim 1, wherein the measurement signal is a paging signal.

3. The method according to claim 1 or 2, wherein the preset tapping operation comprises: an operation in which a user taps the wearable device using a finger or a knuckle; the user uses the wearable device to knock the second terminal; or the user uses the wearable device to knock the object around the second terminal.

4. The method of any one of claims 1-3, further comprising, after the wearable device receives M response signals from M terminals generated in response to the measurement signals:

the wearable device calculates an RSSI of each of the M terminals based on the M response signals.

5. A method for establishing a communication connection, comprising:

responding to the knocking operation, the wearable device sends measurement signals to N terminals, the wearable device stores identification information of each terminal in the N terminals, and N is larger than 1;

the wearable device receives M response signals generated by the M terminals in response to the measurement signals, the response signals are associated with the signal strength of the terminals, M is more than 1 and less than or equal to N, and M, N are integers;

the wearable device determines a first terminal, wherein the first terminal is the terminal with the largest signal intensity in the M terminals;

the wearable device establishes a short-range wireless communication connection with the first terminal.

6. The method of claim 5, wherein the wearable device detects the user input of the preset tapping operation through a vibration sensor, and the method comprises the following steps:

the wearable device collects the received vibration signal by using the vibration sensor;

when the vibration characteristics of the vibration signal conform to the vibration characteristics of a preset tapping operation, the wearable device determines that the preset tapping operation is input by the user.

7. The method according to claim 5 or 6, wherein the preset tapping operation comprises: an operation in which a user taps the wearable device using a finger or a knuckle; the user uses the wearable device to knock the first terminal; or the user uses the wearable device to knock the object around the first terminal.

8. The method according to any one of claims 5-7, wherein the wearable device sends measurement signals to N terminals, including:

and the wearable equipment sends a measurement signal to the corresponding terminal according to the identification information of each terminal in the N terminals.

9. The method of any of claims 5-8, wherein the wearable device determines the first terminal, comprising:

the wearable device calculates a signal strength of each of the M terminals based on the M response signals;

the wearable device determines the terminal with the largest signal strength as the first terminal.

10. The method of claim 9, wherein the signal strength is: the ratio of the absolute value of the signal intensity to a preset standard value of the signal intensity.

11. A method for establishing a communication connection, comprising:

the terminal receives a first knocking operation input by a user through a vibration sensor;

when the first knocking operation is a preset knocking operation, the terminal starts a preset process to wait for a measurement signal;

the terminal receives a measuring signal sent by the wearable equipment;

in response to the measurement signal, the terminal establishes a short-range wireless communication connection with the wearable device.

12. The method of claim 11, wherein the preset tapping operation is: and the user uses the wearable equipment to knock the terminal.

13. The method according to claim 11 or 12, wherein after the terminal receives the first tapping operation of the user input through the vibration sensor, the method further comprises:

and when the vibration characteristic of the first knocking operation is consistent with the preset vibration characteristic of the knocking operation, the terminal determines that the first knocking operation is the preset knocking operation.

14. The method according to any of claims 11-13, further comprising, prior to the terminal establishing a short-range wireless communication connection with the wearable device:

the terminal acquires a vibration signal of a second knocking operation acquired by the wearable device;

wherein the terminal automatically establishes a short-range wireless communication connection with the wearable device in response to the measurement signal, comprising:

and when the vibration signal of the second knocking operation and the vibration signal of the first knocking operation come from the same knocking operation, the terminal establishes short-distance wireless communication connection with the wearable device.

15. A method according to any of claims 11-14, wherein the short-range wireless communication connection is a bluetooth connection and the measurement signal is a paging signal.

16. A wearable device, comprising:

a vibration sensor for acquiring a vibration signal generated by the wearable device;

one or more processors;

a communication module;

a memory;

wherein the memory has stored therein one or more computer programs, the one or more computer programs comprising instructions, which when executed by the wearable device, cause the wearable device to perform the steps of:

establishing a first asynchronous connectionless ACL link with a first terminal;

detecting that a preset knocking operation is input by a user through the vibration sensor;

responding to the knocking operation, sending measurement signals to N terminals, wherein the wearable device stores identification information of each terminal in the N terminals, the N terminals do not include the first terminal, and N is larger than or equal to 1;

receiving M response signals generated by M terminals responding to the measurement signals, wherein the response signals are associated with the signal strength indication RSSI of the terminals, M is more than or equal to 1 and less than or equal to N, and M, N are integers;

determining a second terminal, wherein the second terminal is one of the M terminals, and the second terminal is the terminal with the maximum RSSI among the M terminals and the first terminal;

and disconnecting the first ACL link between the first terminal and the second terminal, and establishing a second ACL link between the second terminal and the second terminal.

17. The wearable device of claim 16, wherein after the wearable device receives M response signals from M terminals generated in response to the measurement signals, the wearable device is further configured to perform:

calculating an RSSI of each of the M terminals based on the M response signals.

18. A wearable device, comprising:

one or more processors;

a communication module;

a memory;

responding to the knocking operation, sending measurement signals to N terminals, wherein the wearable equipment stores identification information of each terminal in the N terminals, and N is greater than 1;

receiving M response signals generated by the M terminals in response to the measurement signals, wherein the response signals are associated with the signal strength of the terminals, M is more than 1 and less than or equal to N, and M, N are integers;

determining a first terminal, wherein the first terminal is the terminal with the maximum signal intensity in the M terminals;

and establishing short-distance wireless communication connection with the first terminal.

19. The wearable device according to claim 18, wherein the wearable device detects a preset tapping operation by the user through the vibration sensor, and specifically comprises:

collecting a received vibration signal using the vibration sensor;

and when the vibration characteristics of the vibration signal accord with the vibration characteristics of the preset knocking operation, determining that the preset knocking operation is input by the user.

20. The wearable device according to claim 18 or 19, wherein the wearable device sends measurement signals to the N terminals, specifically comprising:

and sending a measuring signal to the corresponding terminal according to the identification information of each terminal in the N terminals.

21. The wearable device according to any of claims 18-20, wherein the wearable device determines the first terminal, in particular comprising:

calculating a signal strength of each of the M terminals based on the M response signals;

and determining the terminal with the maximum signal strength as the first terminal.

22. A terminal, comprising:

the touch screen comprises a display screen and a touch sensor;

the vibration sensor is used for acquiring a vibration signal generated by the terminal;

one or more processors;

a communication module;

a memory;

wherein the memory has stored therein one or more computer programs, the one or more computer programs comprising instructions, which when executed by the terminal, cause the terminal to perform the steps of:

receiving a first tapping operation input by a user through the vibration sensor;

when the first knocking operation is a preset knocking operation, starting a preset process to wait for a measurement signal;

receiving a measurement signal sent by a wearable device;

establishing a short-range wireless communication connection with the wearable device in response to the measurement signal.

23. The terminal of claim 22, wherein after the terminal receives a first tap operation of a user input through the vibration sensor, the terminal is further configured to perform:

and when the vibration characteristic of the first knocking operation is consistent with the preset vibration characteristic of the knocking operation, determining that the first knocking operation is the preset knocking operation.

24. The terminal according to claim 22 or 23, wherein before the terminal establishes the short-range wireless communication connection with the wearable device, the terminal is further configured to perform:

acquiring a vibration signal of a second knocking operation acquired by the wearable device;

wherein, the terminal responds to the measurement signal and automatically establishes short-distance wireless communication connection with the wearable device, and the method specifically comprises the following steps:

when the vibration signal of the second knocking operation and the vibration signal of the first knocking operation are from the same knocking operation, a short-distance wireless communication connection is established with the wearable device.

25. A communication system, comprising: the wearable device of any of claims 16-21; and one or more terminals as claimed in any one of claims 22 to 24.

26. A chip system, comprising at least one processor and at least one interface circuit; the interface circuit is used for reading an instruction stored in the memory and sending the instruction to the processor; the instructions, when executed by the processor, cause a wearable device to perform the method of establishing a communication connection of any of claims 1-10.

27. A chip system, comprising at least one processor and at least one interface circuit; the interface circuit is used for reading an instruction stored in the memory and sending the instruction to the processor; the instructions, when executed by the processor, cause the terminal to perform the method of establishing a communication connection of any of claims 11-15.

28. A computer storage medium comprising computer instructions that, when executed on a wearable device, cause the wearable device to perform the method of establishing a communication connection of any of claims 1-10.

29. A computer storage medium comprising computer instructions which, when run on a terminal, cause the terminal to perform the method of establishing a communication connection of any of claims 11-15.